US Patent: 576,602
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| Wrench
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Patentee:
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| Joel A. McCawley (exact or similar names) - Canton, KY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Sep. 28, 1896 |
| Granted: |
Feb. 02, 1897 |
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Patent Pictures:
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Joel A. McCawley patent February 2, 1897 |
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Stan Schulz
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Description: |
| The operating lever works a link that engages rack teeth on the movable jaw with rack teeth on the main shank, and tightens the grip.
In the corresponding Canadian patent no. CA-56,991issued August 11, 1897, Cobb's first name is "George." |
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